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1. 发明授权

US11547951B2 Method of decomposing by-product in phenol preparation process 有权
公开(公告)号：US11547951B2
公开(公告)日：2023-01-10
申请号：US17511310
申请日：2021-10-26
申请人： LG CHEM, LTD.
发明人： Minsuk Kang , Sang Beom Lee , Sung Ho Lee , Joon Ho Shin , Sangeun Kim
IPC分类号： B01D3/00 , B01D3/14 , C07C7/04 , C07C37/74 , C07C45/82
摘要： A method of decomposing a phenol by-product produced in a phenol preparation process, in which acetophenone separated from a distillation column is mixed with tar separated and collected in a decomposition reactor, thereby significantly decreasing viscosity of tar. The decomposition method according to the present invention allows tar to have sufficient viscosity for flowability even at room temperature, whereby transfer and storage of tar may be more smoothly done without using any heating device for transfer of tar.

2. 发明申请

US20230002340A1 SEPARATION OF CANNABINOIDS FROM MIXTURES THEREOF BY DISTILLATION 有权
公开(公告)号：US20230002340A1
公开(公告)日：2023-01-05
申请号：US17631591
申请日：2020-07-30
申请人： CANOPY GROWTH CORPORATION
发明人： Christopher ADAIR , Ben GEILING , Logan MARYNISSEN
IPC分类号： C07D311/80 , C07C37/74 , B01D3/14 , B01D3/00 , B01D1/22 , B01D5/00
摘要： The present disclosure relates to isolating one or more cannabinoids from an input mixture. There is disclosed an apparatus that comprises a volatizing unit, a fractional distillation unit, and a condensing unit. The volatizing unit receives and volatilizes the input mixture to provide a cannabinoid-containing vapor stream and a residue. The fractional distillation unit comprises a plenum for receiving the cannabinoid-containing vapor stream and separates a first cannabinoid from at least a second cannabinoid. The condensing unit is configured to receive a portion of the cannabinoid-containing vapor stream comprising the first cannabinoid from the plenum and to form a condensed first cannabinoid output stream and a recirculate stream. There are also disclosed methods for isolating one or more cannabinoids employing a recirculate stream.

3. 发明申请

US20220340538A1 THERMAL CONVERSION OF CBDA AND OTHER CARBOXYLIC CANNABINOIDS 有权
公开(公告)号：US20220340538A1
公开(公告)日：2022-10-27
申请号：US17727788
申请日：2022-04-24
申请人： Trevor Percival Castor
发明人： Trevor Percival Castor
IPC分类号： C07D311/80 , C07C37/50 , C07C39/19 , C07C37/74 , B01J3/04
摘要： This invention is for improving the manufacturing pharmaceutical grade CBD and other cannabinoids following current Good Manufacturing Practices (cGMP) of the US FDA for use in clinical trials for CNS and other indications by the NIH and other researchers. The major cannabinoids in marijuana (Cannabis) and hemp originate from Cannabigerolic Acid (CBGA) present in the biomass of the plant. Plant enzymes that are specific to different strains of biomass converts CBGA to different carboxylic acids of cannabinoids including Cannabidiolic Acid (CBDA) and Δ9-Tetrahydrocannabinolic Acid (Δ9-THCA). These are relatively stable in the growing and fresh-cut plants. These are converted by thermal decarboxylation to Cannabidiol (CBD) and Δ9-Tetrahydrocannabinol (Δ9-THC), carbon dioxide and water. Cannabinoids can be manufactured by first heating the Cannabis biomass to convert carboxylic acids prior to extraction and purification. Alternatively, and preferably because of manufacturing cost and product stability, the carboxylic acids can be first extracted and purified. They can be utilized in the carboxylic acid form or stored in a stable manner until converted to cannabinoids for use in medicine. This invention provides an efficient method for their conversion utilizing a high-pressure reactor under inert conditions.

4. 发明授权

US11247958B2 Method and apparatus for decomposing phenolic by-product 有权
公开(公告)号：US11247958B2
公开(公告)日：2022-02-15
申请号：US16975331
申请日：2019-10-15
申请人： LG CHEM, LTD.
发明人： Min Suk Kang , Sang Beom Lee , Joon Ho Shin
IPC分类号： C07C37/74 , B01D3/00 , B01D3/14 , B01D3/32 , B01D3/42 , C07C39/16
摘要： The present disclosure relates to a method and an apparatus for decomposing a phenolic by-product generated in a bisphenol A preparation process, the method including: a step (S10) of feeding the phenolic by-product to a multistage reactive distillation column; a step (S20) of separating the phenolic by-product into an upper discharge stream containing an active component, a side discharge stream containing acetophenone, and a bottom discharge stream containing tar by the multistage reactive distillation column; and a step (S30) of mixing the side discharge stream discharged from the multistage reactive distillation column and the bottom discharge stream discharged from the multistage reactive distillation column to form a mixed discharge stream.

5. 发明申请

US20200308500A1 HYDROTHERMAL LIQUEFACTION OF LIGNOCELLULOSIC BIOMASS TO BIO-OILS WITH CONTROLLED MOLECULAR WEIGHTS 审中-公开
公开(公告)号：US20200308500A1
公开(公告)日：2020-10-01
申请号：US16310889
申请日：2017-06-27
申请人： THE UNIVERSITY OF WESTERN ONTARIO
发明人： Chunbao XU , Zongshun YUAN , Shanghuan FENG
IPC分类号： C10L1/02 , C07C29/80 , C07C37/68 , C07C37/74
摘要： The disclosed invention is a process for liquefaction of hydrolysis residue of lignocellulosic biomass, original lignocellulosic biomass or municipal solid waste in alcohol-water media at alkaline conditions, for the production of low-Mw bio-oils. The disclosed process is characterized in that it works for the direct liquefaction of the biomass, and operates under mild conditions (

6. 发明申请

US20200039908A1 Isolation of pure cannabinoids from Cannabis 审中-公开
公开(公告)号：US20200039908A1
公开(公告)日：2020-02-06
申请号：US16603226
申请日：2018-04-04
申请人： University of Mississippi
发明人： Mahmoud A. ElSohly , Waseem Gul , Mohamed M. Radwan , Amira Samir Wanas
IPC分类号： C07C37/74 , A01H6/28 , A61K31/05 , C07C37/00 , C07C37/82 , C07C37/86 , C07C39/23 , G01N30/02
摘要： Δ9-Tetrahydrocannabinol (Δ9-THC or THC) and cannabidiol (CBD) are major constituents of the Cannabis plant that have pharmacological properties with potential therapeutic value. This invention is directed to processes for large scale isolation of these two and other cannabinoids from the Cannabis sativa plant. This is accomplished through the discovery that protected amino acid esters of the cannabinoids are easier to separate using normal phase silica column chromatography. Mild base hydrolysis of the esters regenerates the free cannabinoids in a purified form. The invention is also applicable to the isolation of other cannabinoids from Cannabis extracts.

7. 发明授权

US10457620B2 System for producing phenol and bisphenol A including removal unit for removing methanol and acetone 有权
公开(公告)号：US10457620B2
公开(公告)日：2019-10-29
申请号：US16329087
申请日：2017-11-28
申请人： LG CHEM, LTD.
发明人： Sang Beom Lee , Sung Kyu Lee , Joon Ho Shin , Sung Ho Lee , Sa Eun Park , In Yong Jeong
IPC分类号： C07C37/20 , C07C37/74 , C07C37/88 , C07C39/04 , C07C39/16 , B01D3/32 , C07C37/08 , C07C37/68 , C07C37/70 , C07C37/86
摘要： A system for producing phenol and bisphenol A comprising: a first production unit for producing phenol comprising a decomposition reaction unit and a purification unit; a second production unit for producing bisphenol A comprising a reaction unit and a concentration unit; and a removal unit for removing methanol and acetone during the production of phenol and bisphenol A. The removal unit includes a removal column comprising an overhead purge part, a bottom recirculation part and a supply part. The supply part comprises a purification unit discharge part to supply methanol, acetone, and water discharged from the purification unit to the removal column and a concentration unit discharge part to supply phenol, acetone, and water discharged from the concentration unit to the removal column, and is provided to the midsection of the removal column.

8. 发明申请

US20190299116A1 PROCESS AND APPARATUS FOR CONTROLLING THE SPLIT OF LIQUID REFLUX IN A DIVIDED WALL COLUMN 审中-公开
公开(公告)号：US20190299116A1
公开(公告)日：2019-10-03
申请号：US16368310
申请日：2019-03-28
申请人： UOP LLC
发明人： Russell C. Schulz , Chad A. Williams , James W. Harris , Nikunj Manubhai Patel
IPC分类号： B01D3/14 , B01D3/42 , C07C37/74 , C07C39/04
摘要： The present invention relates to the fractionation technology that is used to create purified phenol and acetone products. More specifically, the present invention relates to a fractionation technology that is used to create crude acetone and crude phenol streams using a dividing wall column intended to remove cumene, alpha-methyl styrene and water from the product side of the wall.

9. 发明授权

US10358403B2 Method for recovering phenol and acetone from cracking reaction product of bisphenol-A residue 有权
公开(公告)号：US10358403B2
公开(公告)日：2019-07-23
申请号：US15751360
申请日：2016-12-07
申请人： LG CHEM, LTD.
发明人： Sang-Beom Lee , Joon-Ho Shin , In-Yong Jeong , Jong-Hui Park , Myeong-Yeon Keum , Jeong-Ho Kim , Tae-Ho Kim
IPC分类号： C07C37/08 , C07C37/74 , C07C37/68 , C07C45/53 , C07C45/78 , C07C45/82 , C07C37/52 , C07C45/51 , C07C37/72 , C07C37/86 , C07C45/80
摘要： Disclosed is a method for recovering phenol and acetone from the cracking reaction product of bisphenol-A residue, by which economic feasibility and efficiency may be improved by utilizing a phenol/acetone purification process used for preparing bisphenol-A.

10. 发明授权

US10343965B2 Separation of dichlorophenols 有权
公开(公告)号：US10343965B2
公开(公告)日：2019-07-09
申请号：US15578869
申请日：2016-05-31
申请人： MONSANTO TECHNOLOGY LLC
发明人： Kam-To Wan , Eduardo A. Casanova , John H. Ahn , Junqiu Yang
IPC分类号： C02F1/20 , C02F1/26 , C02F1/66 , C07C37/72 , C07C37/74 , C07C37/84 , C07C39/30 , C07C51/09 , C07C51/15 , C07C65/05 , C07C65/21 , C07C67/31 , C07C69/92 , C02F101/34 , C02F101/36 , C07C51/347
摘要： Various processes for the separation of a mixture containing dichlorophenols are described. In various aspects, the present invention relates to separation processes that produce an extract enriched in 2,4-dichlorophenol content and an extract enriched in 2,5-dichlorophenol content. The present invention further relates to various processes that integrate with these separation processes, such as a process for producing 3,6-dichloro-2-methoxybenzoic acid (dicamba) or salt or ester thereof or a process for producing 2,4-dichlorophenoxyacetic acid (2,4-D) or salt or ester thereof.

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